The terrorist group ISIS has claimed responsibility for the deadly twin attacks in Brussels, Belgium, Tuesday morning. News coverage of the attacks will stream live throughout the day, as terrorism experts worry that another terror attack will be coming within days or even hours.

The ISIS claim of responsibility for the horrifying attacks was posted on an online propaganda site known by authorities to be used by the Syria-based terrorist group, and said that the bombings were carried out using “explosive belts and devices,” and that Belgium was targeted because it is “a country participating in the international coalition against the Islamic State,” according to a report in Britain’s Independent newspaper.

An unfiltered, up-to-the minute source or information and, indeed, speculation on the Brussels, Belgium, ISIS terrorist attacks can be found via Twitter. A live feed of posts with the hashtag #Brussels can be seen below. The latest tweets are on top of the feed. Scroll down in the feed to see previous Twitter postings.

Live news coverage of the Brussels attacks and their aftermath, including updates on the investigation, is provided by the English-language French TV network France 24, in the video below.

For a domestic, United States point of view on coverage of the ISIS attacks in Belgium, see the live video from Fox News, in the following window.

Finally, the Russian government-owned TV news network Ruptly provides coverage in the following live video stream, offering an entirely different perspective.

While United States authorities said that there had been no credible or specific threats against U.S. territory, several U.S. cities went on high alert status, stepping up security measures and police deployments at airports and public transportation stations.

“What the terrorists want is for us to change our ways,” the mayor of the largest United States city said on Tuesday morning. “We refuse to change who we are. We are going to respond to their efforts to create chaos by showing them order, by showing them our society functioning, our city functioning.”

In Havana, during his historic visit to Cuba, U.S. President Barack Obama condemned the attacks in a speech there.

Los Angeles and Chicago also reportedly put heightened security measures in place in those cities.

The leading United States presidential candidates issued statements responding to the attacks.

Republican frontrunner Donald Trump declared the attacks “retaliation” for the capture of ISIS-linked terror suspect Salah Abdeslam in Brussels last week — though the initial statement from ISIS itself made no mention of Abdeslam or his capture, and terror experts believe that a coordinated attack such as the one carried out Tuesday would in all likelihood take more than a few days to prepare.

When Abdeslam, the suspected mastermind of the November 13 Paris terror attacks, was captured Friday in Brussels, authorities in Belgium said they found evidence that he was part of a “vast network” of ISIS terrorists that was already planning new terrorist attacks.

Experts have speculated that the Brussels attacks may have been already in the works at the time of Abdeslam’s capture.